Tripp Lite 1440VA 1200W UPS Smart Tower Battery Back Up Desktop AVR USB LCD - Tower - AVR - 8 Hour Recharge - 2 Minute Stand-by - 120 V AC Input - 120 V AC, 115 V AC, 110 V AC Output - 8 x NEMA 5-15R

Maintains continuous 120V nominal output during brownouts and overvoltages Home-friendly alarm remains silent in backup mode, sounding only when imperative Protects equipment against blackouts, brownouts, overvoltages, surges and line noise Keeps AC power running during blackouts to allow time for file saves and safe shutdown Compatible with optional external battery pack for extended runtime operation